Code
NUKIBR
Status
Formal (Westerhoff 2003).
Lithologische beschrijving
Stiff greyish brown to dark brown clay, slightly sandy to very silty. Intercalated layers of fine to medium sand and lignite.
Afzettingsmilieu
Meandering fluvial (floodplain, swamp), lacustrine.
Definitie ondergrens
Generally sharp contact with fluvial sand and gravel (Waubach Member, Kieseloolite Formation).
Definitie bovengrens
Generally exposed at the surface. Elsewhere, transition into Kieseloolite Formation (undifferentiated).
Dikte indicatie
Up to about 80 m.
Geografische verbreiding
Southeasternmost Netherlands, including Roer Valley Graben.
Regionale correlatie
North Sea: not present; UK: not present; GER: Rotton Member, Kieseloolith Formation; BEL: part of the Mol Formation, Kiezeloöliet Formation, Brunssum I, Pey and Brunssum II Members.
Ouderdom
Pliocene.
Lectostratotype
Well:
Depth (thickness) AH:
68 - 94 m (26 m) and 113 - 128.7 m (15.7 m) below land surface
Oorsprong naam
Named after the village of Brunssum, on the German border in the southeasternmost Netherlands.
Vorige benaming(en)
Brunssum Clay (Doppert et al. 1975).
Gereviewed door (datum)
Wim Dubelaar (2018), Sytze van Heteren (2019).
Referenties
Doppert, J.W.Chr., Ruegg, G.H.J., Van Staalduinen, C.J., Zagwijn, W.H., Zandstra, J.G. 1975. Formaties van het Kwartair en Boven-Tertiair in Nederland. In: Zagwijn, W.H., Van Staalduinen, C.J. (eds.): Toelichting bij geologische overzichtskaarten van Nederland. Rijks Geologische Dienst, Haarlem, 11-56.
Westerhoff, W.E. 2003. Beschrijving lithostratigrafische eenheid. Nederlands Instituut voor Toegepaste Geowetenschappen TNO. Utrecht.
Cite as
TNO-GDN ([YEAR]). Brunssum Member. In: Stratigraphic Nomenclature of the Netherlands, TNO – Geological Survey of the Netherlands. Accessed on [DATE] from https://www.dinoloket.nl/en/stratigraphic-nomenclature/brunssum-member.